Proxy
Proxy is a highly overloaded term in computer graphics… but so were all the alternatives we considered for the same concept in USD. “proxy” is one of the possible Purpose values a prim can possess in the UsdGeom schemas. When we talk about “a proxy” for a model or part of a model, we mean a prim (that may have a subtree) that has purpose proxy , and is paired with a prim whose purpose is render. The idea behind this pairing is that the proxy provides a set of gprims that are lightweight to read and draw, and provide an idea of what the full render geometry will look like, at much cheaper cost.